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Klicka för fler bilderCommodore VIC20

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1981.

After the PET computers came the first "folk-model", a machine truely beloved by the people. A compact computer that looked like a computer would look like at this time. It also had real keys, enhanced graphics with colour - though only 22 characters per line - serial port and audio just to mention something.

Another advantage it had, was the relatively low price, which strongly contributed to the success. Or how about some 9 000 manufactured units per DAY. Or to reach the million line after about two years on the market. Talk about "folk-computer".

The name VIC20 has two stories. First the name VIC, which stand for Video Interface Chip. It was a preprocessor to the main processor, primarily aimed to generate the video out signal. On the other hand the figure of 20 that does not mean anything. It does not relate to anything technical in the computer. It is just a "friendly" figure to a "friendly" computer.

Thanks to Anders Persson, Anders Datormuseum for valuable comments.

Is there any errors? e-mail and correct me!

 

 

Former owner: Brånemyr, Umeå

Technical data

 
Year 1981
Origin USA
Manufacturer CBM
Name VIC-20
CPU MOS 6502
Speed 1,1 Mhz
OS BASIC
ROM 20 KB
RAM 5 KB internally. Expandable up to 40 KB
I/O ports Joystick, expansion, serial, video, tape recorder, user port
Text modes 20 x 23
Graphic modes 176 x 184
Colours 16
Sound 4 channels, 3 octaves
Built in media  
Power supply External